1,877 research outputs found

    Perfil nutricional de alimentos proporcionados por un programa social relacionado a la composición corporal y obesidad abdominal en escolares de institución educativa pública, 2023

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    El perfil nutricional permite clasificar a los alimentos procesados y ultra procesados, según sus nutrientes críticos, su consumo representa un riesgo para la salud. Objetivo: Evaluar la relación entre el perfil nutricional de alimentos proporcionados por el PNAE “Qali Warma” con la composición corporal y obesidad abdominal en escolares de la Institución Educativa Pública, 2023. Metodología: Investigación de enfoque cuantitativo de diseño no experimental y de corte transversal correlacional- causal. La muestra final de estudio fueron 73 escolares quienes cursan el cuarto grado de primaria. Para conocer el perfil de nutrientes de alimentos de un programa social, se elaboró un cuestionario categorizado por el sistema NOVA con los alimentos recibidos durante el año escolar; además, fue validado por juicios de expertos. Para el diagnóstico de la composición corporal y obesidad abdominal se utilizaron los indicadores antropométricos: peso, talla, perímetro y pliegues. Para evaluar la relación de las variables, se ha utilizado la prueba Rho Spearman. Resultados: Al evaluar el perfil nutricional de alimentos: el 78,1% se encontró en riesgo, el 19,2%, no saludable y el 2,7%, saludable. Para el diagnóstico de composición corporal se encontraron: 47,9% con sobrepeso y 17,8% con obesidad. Además, el 19,2% tienen alta grasa corporal y el 28,8%, musculatura reducida. Por último, se encontró, según el indicador perímetro abdominal que: el 61,6% presentan riesgo bajo y 22,3%, riesgo alto a enfermedades cardiovasculares. Al evaluar la relación perfil nutricional de alimentos proporcionados por el PNAE “Qali Warma”, con composición corporal y obesidad abdominal, se obtuvo un p<0.05. Conclusión: Existe relación directa entre el perfil nutricional de alimentos entregados por Qali Warma con la composición corporal y obesidad abdominal

    Tieliikennemelun mittaus ympäristötekniikan opetuksessa

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    Opinnäytetyön tavoitteena on kehittää Hämeen ammattikorkeakoulun Riihimäen yksikössä toimivan liikennealan koulutusohjelman opetusta. Lähtökohtana on valmistuvien liikenneinsinöörien (AMK) asiantuntijuuden kehittymisen voimistaminen. Asiantuntijuuden kehittymistä ja sen keskeisiä elementtejä on tarkasteltu integratiivisen pedagogiikan viitekehyksessä. Työelämässä tarvittavan asiantuntijuuden syntymistä voidaan edesauttaa luomalla oppimisympäristöjä ja -tehtäviä, joissa teoreettinen aines on yhdistettävissä käytännölliseen ongelmanratkaisuun. Oppimisympäristöt ja harjoitustehtävät on suunniteltava mahdollisimman aidoiksi eli työelämässä esiintyvien tehtävien kaltaisiksi. Asiantuntijuus koostuu teoreettisista, käytännöllisistä ja sosiokulttuurisista elementeistä sekä itsesäätelytiedosta eli oman toiminnan ohjaa-miseen liittyvästä havainnoinnista. Integratiivinen pedagogiikka on kehitetty apuvälineeksi sellaisten pedagogisten ratkaisujen luomiseen, joiden avulla kehitetään työelämässä tarvittavaa asiantuntijuutta. Opinnäytetyössä luodaan pohja maastotutkimusten työskentelymallille ja sen avulla käynnistetään konkreettisten, kokemuksellisten osien käyttö liikennealan opetuksessa. Maastossa voidaan kerätä monenlaista tietoa lii-kennevirran ominaisuuksista ja tarkastella niitä kartta- ja muilla analyyseillä sekä reflektoida ja keskustella työskentelytavoista ja tuloksista. Työssä haastateltiin kolmea oppilaitoksen ja kolmea työelämän edustajaa ja kerättiin kokemuksia laboratorio- ja maastotutkimusten käytöstä työelämässä ja opetuksessa. Kokemuksista keskusteltiin ja löydettiin uusia yhteistyömuotoja. Tässä työssä suunniteltiin tieliikennemelun mittaus oppimistehtäväksi ympäristötekniikan opintojaksolle ja tehtiin ehdotuksia muiden maastotutkimusten käytöstä opetuksessa. Seuraavana tehtävänä suunnitellaan nopeusmittaus ja tutkitaan paikkatiedon hyödyntämismahdollisuudet

    Copigmentation of anthocyanins: estimation and influence on the Graciano`s red wine colour

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    Comunicación enviada al X Congreso Nacional del Color. Valencia 2013Una gran parte del color de los vinos tintos viene explicada por el fenómeno de la copigmentación, sobre todo cuando se trata de vinos jóvenes. Para su estimación el método más usado en la actualidad es el propuesto por Boulton [1], sin embargo este método sólo considera las diferencias de absorbancia a 520 nm y para cuantificar de forma más precisa las diferencias de color que implica este fenómeno se hace necesario considerar el espectro visible entero. En este trabajo se han considerado las dos formas de estimación, considerando las diferencias de absorbancia a 520 nm y las diferencias a lo largo del espectro visible entero (380-770 nm). Se ha observado una sobrestimación de la primera, sobre todo cuando el vino es joven correspondiendo con los porcentajes de copigmentación más elevados. También se ha observado que los parámetros de color están correlacionados con la copigmentación, de tal forma que una mayor copigmentación implica más croma en el vino, menos claridad y variaciones significativas en el tono. Para cada vino, las variaciones en los parámetros cuantitativos de color (claridad y croma) son más altas en la etapa de final de fermentación alcohólica (porcentaje de copigmentación más elevado) que en la etapa de embotellado (porcentaje de copigmentación más bajo). Sin embargo, este fenómeno implica cambios cualitativos (variaciones de tono) más importantes en las etapas finales (embotellado) que en etapas iniciales.It is well known that the copigmentation phenomenon has a large contribution to the red wine colour, especially when it is young. Nowadays, the most commonly used method is the proposed by Boulton which only considers the differences of absorbance at 520 nm. The approach of considering the whole visible spectrum has also been used but is not as well extended as the first one.Differences between the two forms of estimate the copigmentation effect in wines were compared in this study. Moreover, the involvement of this phenomenon in the CIELAB color parameters at two different stages of winemaking was evaluated.Results showed that the method proposed by Boulton seems to overestimate this phenomenon, above all when the wine is young.CIELAB color parameters are correlated with the copigmentation process, thus a higher value of copigmentation implies a higher chroma, a lower lightness and significant variations in the hue. In this way, the variations on the quantitative parameters are higher at the end of the alcoholic fermentation and the variations on the qualitative parameter (hue) are higher when the wine is bottling.Hernández-Hierro, JM.; Rivas-Gonzalo, J.; Heredia, FJ.; Escribano-Bailón, MT. (2013). Copigmentación de antocianos: estimación e influencia en el color de vinos tintos del cultivar Graciano. http://hdl.handle.net/10251/3029

    Voriconazole Use in Children: Therapeutic Drug Monitoring and Control of Inflammation as Key Points for Optimal Treatment

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    Infeccions fúngiques pediàtriques; Monitorització terapèutica de fàrmacs; VoriconazolInfecciones fúngicas pediátricas; Monitorización terapéutica de fármacos; VoriconazolPaediatric fungal infections; Therapeutic drug monitoring; VoriconazoleVoriconazole plasma concentrations (PC) are highly variable, particularly in children. Dose recommendations in 2–12-year-old patients changed in 2012. Little data on therapeutic drug monitoring (TDM) after these new recommendations are available. We aimed to evaluate voriconazole monitoring in children with invasive fungal infection (IFI) after implementation of new dosages and its relationship with safety and effectiveness. A prospective, observational study, including children aged 2–12 years, was conducted. TDM was performed weekly and doses were changed according to an in-house protocol. Effectiveness, adverse events, and factors influencing PC were analysed. A total of 229 PC from 28 IFI episodes were obtained. New dosing led to a higher rate of adequate PC compared to previous studies; still, 35.8% were outside the therapeutic range. In patients aged < 8 years, doses to achieve therapeutic levels were higher than recommended. Severe hypoalbuminemia and markedly elevated C-reactive protein were related to inadequate PC. Therapeutic PC were associated with drug effectiveness and safety. Higher doses in younger patients and a dose adjustment protocol based on TDM should be considered. Voriconazole PC variability has decreased with current updated recommendations, but it remains high and is influenced by inflammatory status. Additional efforts to control inflammation in children with IFI should be encouraged.This research was funded by an Investigator Sponsored Research Grant from Pfizer (Grant Number WI182544

    Voriconazole Use in Children : Therapeutic Drug Monitoring and Control of Inflammation as Key Points for Optimal Treatment

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    Voriconazole plasma concentrations (PC) are highly variable, particularly in children. Dose recommendations in 2-12-year-old patients changed in 2012. Little data on therapeutic drug monitoring (TDM) after these new recommendations are available. We aimed to evaluate voriconazole monitoring in children with invasive fungal infection (IFI) after implementation of new dosages and its relationship with safety and effectiveness. A prospective, observational study, including children aged 2-12 years, was conducted. TDM was performed weekly and doses were changed according to an in-house protocol. Effectiveness, adverse events, and factors influencing PC were analysed. A total of 229 PC from 28 IFI episodes were obtained. New dosing led to a higher rate of adequate PC compared to previous studies; still, 35.8% were outside the therapeutic range. In patients aged < 8 years, doses to achieve therapeutic levels were higher than recommended. Severe hypoalbuminemia and markedly elevated C-reactive protein were related to inadequate PC. Therapeutic PC were associated with drug effectiveness and safety. Higher doses in younger patients and a dose adjustment protocol based on TDM should be considered. Voriconazole PC variability has decreased with current updated recommendations, but it remains high and is influenced by inflammatory status. Additional efforts to control inflammation in children with IFI should be encouraged

    Novel deep targeted sequencing method for minimal residual disease monitoring in acute myeloid leukemia

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    A high proportion of patients with acute myeloid leukemia who achieve minimal residual disease (MRD) negative status ultimately relapse because a fraction of pathological clones remains undetected by standard methods. We designed and validated a high-throughput sequencing method for MRD assessment of cell clonotypes with mutations of NPM1, IDH1/2 and/or FLT3-SNVs. For clinical validation, 106 follow-up samples from 63 patients in complete remission were studied by NGS, evaluating the level of mutations detected at diagnosis. The predictive value of MRD status by NGS, multiparameter flow cytometry, or quantitative PCR was determined by survival analysis. The method achieved a sensitivity of 10-4 for SNV mutations and 10-5 for insertions/deletions and could be used in acute myeloid leukemia patients who carry any mutation (86% in our diagnosis data set). NGS-determined MRD positive status was associated with lower disease-free survival (hazard ratio [HR] 3.4, p=0.005) and lower overall survival (HR 4.2, p<0.001). Multivariate analysis showed that MRD positive status by NGS was an independent factor associated with risk of death (HR 4.54, p =0.005) and the only independent factor conferring risk of relapse (HR 3.76, p =0.012). This NGS based method simplifies and standardizes MRD evaluation, with high applicability in acute myeloid leukemia. It also improves upon flow cytometry and quantitative PCR to predict acute myeloid leukemia outcome and could be incorporated in clinical settings and clinical trials.This study was supported by the Subdirección General de Investigación Sanitaria (Instituto de Salud Carlos III, Spain) grants PI13/02387 and PI16/01530, and the CRIS against Cancer foundation grant 2014/0120. M.L. holds a postdoctoral fellowship of the Spanish Ministry of Economy and Competitiveness (FPDI-2013-16409). P.R.P. holds a postdoctoral fellowship of the Spanish of Instituto de Salud Carlos III: Contrato Predoctoral de Formación en Investigación en Salud i-PFIS (IFI 14/00008).S

    A novel deep targeted sequencing method for minimal residual disease monitoring in acute myeloid leukemia

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    A high proportion of patients with acute myeloid leukemia who achieve minimal residual disease negative status ultimately relapse because a fraction of pathological clones remains undetected by standard methods. We designed and validated a high-throughput sequencing method for minimal residual disease assessment of cell clonotypes with mutations of NPM1, IDH1/2 and/or FLT3-single nucleotide variants. For clinical validation, 106 follow-up samples from 63 patients in complete remission were studied by sequencing, evaluating the level of mutations detected at diagnosis. The predictive value of minimal residual disease status by sequencing, multiparameter flow cytometry, or quantitative polymerase chain reaction analysis was determined by survival analysis. The sequencing method achieved a sensitivity of 10-4 for single nucleotide variants and 10-5 for insertions/deletions and could be used in acute myeloid leukemia patients who carry any mutation (86% in our diagnostic data set). Sequencing-determined minimal residual disease positive status was associated with lower disease-free survival (hazard ratio 3.4, P=0.005) and lower overall survival (hazard ratio 4.2, P<0.001). Multivariate analysis showed that minimal residual disease positive status determined by sequencing was an independent factor associated with risk of death (hazard ratio 4.54, P=0.005) and the only independent factor conferring risk of relapse (hazard ratio 3.76, P=0.012). This sequencing-based method simplifies and standardizes minimal residual disease evaluation, with high applicability in acute myeloid leukemia. It is also an improvement upon flow cytometry- and quantitative polymerase chain reaction-based prediction of outcomes of patients with acute myeloid leukemia and could be incorporated in clinical settings and clinical trials.This study was supported by the Subdirección General de Investigación Sanitaria (Instituto de Salud Carlos III, Spain) grants PI13/02387 and PI16/01530, and the CRIS against Cancer foundation grant 2014/0120. ML holds a postdoctoral fellowship of the Spanish Ministry of Economy and Competitiveness (FPDI-2013- 16409). PRP holds a postdoctoral fellowship of the Spanish Instituto de Salud Carlos III: Contrato Predoctoral de Formación en Investigación en Salud i-PFIS (IFI 14/00008).S

    Effect of Cr(V) on reproductive organ morphology and sperm parameters: An experimental study in mice

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    BACKGROUND: Cr(V) species are formed during the intracellular reduction of Cr(VI), a ubiquitous environmental pollutant. In this study, the acute toxicity of a physiologically stable Cr(V) compound, [Cr(V)-BT](2- )(BT = bis(hydroxyethyl)aminotris(hydroxymethyl)methane) was investigated in the male reproductive system of sexually mature 60-day-old male ICR-CD1 mice. METHODS: Eight-week-old animals were subcutaneously injected daily with a dose of ca 8 μmol of Cr/mouse, during 5 days. The control group was injected with 0.5 mL of BT buffer. Testis and epididymis morphology was evaluated using light and transmission electron microscopy. Epididymal sperm counts, motility and acrosome integrity were also assayed using standard methods. RESULTS: Seminiferous epithelium abnormalities were detected in the Cr(V)-BT experimental group, including intraepithelial vacuolation, and remarkable degeneration of Sertoli cells, spermatocytes and spermatids. The premature release of germ cells into the tubular lumen was also evident. Histological evaluation of epididymal compartments revealed apparently normal features. However, the epididymal epithelium presented vacuolation. [Cr(V)-BT](2- )induced a reduction in sperm acrosome integrity. However, sperm motility and density were not significantly affected. CONCLUSION: This in vivo study using a Cr(V) compound, provides evidence for the potential reproductive hazards caused on male reproductive system by species containing chromium in intermediate oxidation states

    Increasing and sustaining blood-borne virus screening in Spain and Portugal throughout the COVID-19 pandemic: a multi-center quality improvement intervention

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    BackgroundAround 57,000 people in Spain and Portugal currently living with HIV or chronic hepatitis C are unaware of their infection. The COVID-19 pandemic severely disrupted screening efforts for these infections. We designed an intervention to increase and sustain opportunistic blood-borne virus (BBV) screening and linkage to care (SLTC) by implementing the TEST model.MethodsThe Plan Do Study Act (PDSA) method of quality improvement (QI) was implemented in 8 healthcare organizations (HCOs), including four hospitals, two clusters of community health centers, and two community-based organizations (CBOs). Baseline assessment included a review of BBV SLTC practices, testing volume, and results 12 months before the intervention. Changes in BBV testing rates over time were measured before, during, and after the COVID-19 lockdowns in 2020. A mixed ANOVA model was used to analyze the possible effect on testing volumes among HCOs over the three study periods.InterventionBBV testing was integrated into normal clinical flow in all HCOs using existing clinical infrastructure and staff. Electronic health record (EHR) systems were modified whenever possible to streamline screening processes, implement systemic institutional policy changes, and promote QI.ResultsTwo years after the launch of the intervention in screening practices, testing volumes increased by 116%, with formal healthcare settings recording larger increases than CBOs. The start of the COVID-19 lockdowns was accompanied by a global 60% decrease in testing in all HCOs. Screening emergency department patients or using EHR systems to automate screening showed the highest resilience and lowest reduction in testing. HCOs recovered 77% of their testing volume once the lockdowns were lifted, with CBOs making the fullest recovery. Globally, enhanced screening techniques enabled HCOs to diagnose a total of 1,860 individuals over the research period.ConclusionsImplementation of the TEST model enabled HCOs to increase and sustain BBV screening, even during COVID-19 lockdowns. Although improvement in screening was noted in all HCOs, additional work is needed to develop strong patient linkage to care models in challenging times, such as global pandemics
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